The heat from Sun reaches to earth in form of waves called _____...? Mcqs

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The heat from Sun reaches to earth in form of waves called _____...?

(A) Conduction
(B) Radiation

(C) Convection
(D) None

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The speed of sound in aluminium is _____...?

(A) 5620 m/s
(B) 6420 m/s

(C) 7220 m/s
(D) 4820 m/s

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In data organization, which method is mostly useful...?

(A) Table
(B) Graph

(C) Ratio
(D) Both a and b

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If an enclosed gas container with moveable piston is heated. What will happen...?

(A) Volume will be decreased
(B) Volume will remain constant

(C) Volume will be increased
(D) Pressure will be increased

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Which one is longitudinal wave...?

(A) sound waves
(B) light waves

(C) water waves
(D) electromagnetic waves

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Each gram fat supplies the body with about ______ calories....?

(A) 7
(B) 9

(C) 10
(D) 5

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Period of rapid growth and development called...?

(A) Childhood
(B) Adult hood

(C) Adolescence
(D) Both A and B

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When in the part of its orbit closest to the Sun, Pluto has an atmosphere of nitrogen and methane similar to Triton’s, but what happens when it is farther from the Sun ...?

(A) These gases are not present
(B) These gases are like plasma

(C) These gases are frozen
(D) These gases are volatile

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An ordinary mobile phone communicate by using___________...?

(A) Sound waves
(B) Infrared waves

(C) UV waves
(D) Radio waves

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If a rocket is launched with a velocity less than the escape velocity of Earth, it will:...?

(A) Escape the Earth’s gravitational field
(B) Enter into an elliptical orbit around the Earth

(C) Fall back to Earth
(D) Travel to another planet

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